BirdAnalyst
BBS Route · Pennsylvania · BCR 28

Kaylor Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 103 species recorded across 41 survey years, still active.

103Species RecordedSpecies recordedDistinct species detected on standard-protocol BBS runs here across all years on record — a measure of survey breadth, not a complete checklist.Full methodology →
41Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1966–2025Span
2Observers

Bird Species Found on Pennsylvania Kaylor

Top 40 of 103 species by most recent count. Each links to its species trend.

Species recorded on the Kaylor route.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →History
American RobinTurdidae542025-17%1968
Red-winged BlackbirdIcteridae272025-75%1968
European StarlingSturnidae242025-2%1968
Song SparrowPasserellidae232025-20%1968
Common GrackleIcteridae222025-52%1968
Chipping SparrowPasserellidae202025-25%1968
Mourning DoveColumbidae192025+191%1968
House SparrowPasseridae152025-63%1968
Gray CatbirdMimidae152025-36%1968
Chimney SwiftApodidae142025+9%1968
Barn SwallowHirundinidae132025+33%1968
Red-eyed VireoVireonidae112025+135%1968
American CrowCorvidae102025+67%1968
Northern CardinalCardinalidae102025-18%1968
Common YellowthroatParulidae102025+0%1968
Blue JayCorvidae92025+88%1968
Wood ThrushTurdidae92025-23%1968
Carolina WrenTroglodytidae92025+450%1998
Northern House WrenTroglodytidae72025+100%1968
American GoldfinchFringillidae62025-32%1968
Indigo BuntingCardinalidae62025-23%1968
Tufted TitmouseParidae62025+167%1969
House FinchFringillidae62025-33%1997
Eastern TowheePasserellidae52025-45%1968
Northern Rough-winged SwallowHirundinidae52022+14%1997
Yellow WarblerParulidae42025+108%1968
White-breasted NuthatchSittidae42025+100%1968
Black-capped ChickadeeParidae42025+120%1969
Ruby-throated HummingbirdTrochilidae42021+50%1997
Willow FlycatcherTyrannidae42025+44%1997
American RedstartParulidae42025+10%1997
Turkey VultureCathartidae42024+100%2005
Eastern MeadowlarkIcteridae32024-78%1968
Baltimore OrioleIcteridae32025+100%1969
Cedar WaxwingBombycillidae32025+229%1969
OvenbirdParulidae32025-41%1968
Hooded WarblerParulidae32024-54%1997
Downy WoodpeckerPicidae22025+33%1995
Eastern Wood-PeweeTyrannidae22025+15%1968
Scarlet TanagerCardinalidae22025+267%1970

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14. A route is a sample, not a census.